Re: [Ksummit-2010-discuss] checkpoint-restart: naked patch
From: Alexey Dobriyan
Date: Fri Nov 19 2010 - 11:00:39 EST
On Fri, Nov 19, 2010 at 5:33 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
>> - insert SKB's into socket buffers
>
> Can't we drain kernel buffers? ie. Stop further writing and wait the
> send-q to drop to zero.
On send:
if network dies right after freeze, you lose.
On receive:
packets arrive after process freeze, but before network device freeze.
>> - setting different statistics counters (like netdev stats etc.)
>> and so on...
>
> Why would this matter?
Because you'll introduce million stupid interfaces not interesting to
anyone but C/R.
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